7. Research into ___ lag has helped to demonstrate the effects of disruption to biological rhythms. (3)

9. In Boivin's study 1 group has very bright light, a second group had bright light, a third group had room light and a fourth group had dim light. Before this every group had been exposed to ___ light. (3)

10. Petrie reviewd ___ studies and found melatonin taken at bedtime is effective. (3)

Down

2. Stewart found that rats have been ___________ upset are not good at resetting their innate clock. (11)

3. Boivin did a study using 30 ____ participants and split them into 4 groups. (4)

6. Seper et al argued that the SCN also has a _______ clock which overrides the SCN when studying mice. (7)